Elastic-warp-knitting machine.



H. U. SHAW.

ELASTIC WARP KNITTING MACHINE.

APPLIUATIUN FILED JULY 9, 1906,

Patented Nov. 21, 1911.

27/2 war, L (41/1 4;

H. O. SHAW.

ELASTIC WARP KNITTING MAUHINE: APPLIGATION FILED JULY a, 1906.

1,009,446. Patented Nov. 21, 1911.

7 SHEETS-SHEET 2v H. G. SHAW. BLtiSTIG WARP KNITIING MACHINE.

APPLIGALIQN FILED JULYB1 1906,

1,009,446. Patented Nov.21, 1911.

7 SHEBTS-SKEET 3,

71 'Zlrarsscw 1 1444 7 H. G. SHAW.

ELASTID WARP KNITTING MACHINE.

nrmouxon rum) JULY s, 1906.

1,009,446. Patented Nov. 21, 19.21

7 8HEBTS--SHEET 4 Jrz 0672121 7% /;@%Qz i H. O. SHAW.

ELASTIC WARP KNHTING MACHINE.

' APPLICATION FILED 1mm 1906,

1,009,446. Patented Nov 21, 19 .3

H G. SHAW.

ELASTIC WARP KNITTING MACHINE.

APPLIGATION FILED JULY 9, 1906.

Patented Nov. 21, $5511.

7 EHEETS- SHEET LL {3. SHAW,

ELA$TIC VHJiP KBFIT'I'HEG MACHINE.

M-PLwumn FILED J'ULY9,19Q6.

Patented Nov 21, 1911 7 SHEETS" SHEIHT L UNIFIED STATES l-PAIITENT 'OFFIOEL HERBERT c. SHAW. or

cnxcaco. .umnor's, ASSIGNOB. TO munm & nmcx, or emcmo, nmmoxs, a conrona'non or zpnmoxs.

ELASTlC-WARE-KNT T'IING MACHINE.

To it whom it mm! concern: Bo it. known that. I, llnanna'r C. Snaw a ('lllZL'll of the United States, residing ai Chicago, in the county of Cook and State of tofore it Inna been cuaton'iary to knit the.

strip from one aide edge to the other, inclosinc a plurality of elastic cords therein. and lrui'iug a raw edge. To pun-ant the ran edge from running down a needle threaded with an elastic cord is drawn by hand through each stitch along the ran edge thereby tinishing the strip. This adds greatly to the lulmr and cxpcnsc'of irotluuing the fabric, which depends entirely upon the accuracy of the hand stitching: to prevent it- [full] running down, and is objectionable in many ways.

It is my object. to avoid thi hand w rk l. y an producing a machine for knitting the. fabric. from and to end instead Hf from aide to wide 'and for inclosing the olaalio cord at. each sidc'odgc of the knitted atri during the knittin operation in the mar line.

In tie accompanying drawinga l. have illustrated one embodiment of the invention and referring thereto Figure l is a plauvioir showing the mirriage in full lll]L' in po-=ition at. tho limit. of its movement to the left and in broken lines in position at the limit "bits mnvcmcnt to the right, and omitting the thread carrier and guide. -l"i;r. i-= a In detail perspective view at a toothed ,lllltlt for tliq'rliwtioeords. Fig. 3 is an enlarged 4o plan view without. the and: of thecarrianr.

Specification of Latino Patent. a' aciaon ma ,Icly 9.1m. Serial no. "5,221.

Fig. -1- is a front elevation of as much of the machine as is shown in Fig. 3 the operating lnm'lle being broken away. Fig. 5 is a transi'cne sectional view on the line S of Fig. 1... Fig. 6 is a (ii-tail perspective Yirw of one device for locking certa in ueadlaa agaimt upward movement. Fig. i' in a tlrlail Vina ot' Ullt neadlo. Figs. 8 and i) are thin i-lnu's showing the cams lor operating 1. c needle-J.

l l i I l pivoted latch ti, and a butt; 7. The needles Patented Nov. 21, 1911.

Fig. 10 is an enlarged detail'ricw showing the cams for operating the rear bank of needles. Figs. 11. and 12 are sectional views on the lineslll-ll and 152 -12; rtiapcctivcly, of Fig. 10. Fig. 13 is a diagrammatic view slim. mg the clastiocorda in section outlinestracing the ooition oftlioiront bank of needles relative to the elastic cords and tin? running of the urn while the carriage is moving from rght toleft. Fig. 14 is a i-llnilwlNlQW showingthe position of the front bank of noodles and the'running-of the yarn while the machine is inovln from left to ri ht. Fig. 15 is a. sectiona view showingtieutitclrn The machine com ris'ea a front ban'l: I and a rear bank 2 ol'needlooaupported in oppositely inclined .positions on a be 3 which is )rovirled Willi fl. throat/4. Each of the tit-adios (Fig. .7) comprises a liook 5, a

are held an inn )erativo position by springs it which car. e a justctl to permit the needles to he moved uut of opcratlive'position. A carriage. U is arrunged'to rociprocate onthe' noetllr lit-(l and it. is held in place thereon by latoa 10 fastened to the bed aunt over-la ping the ribs 11 on the carriage. The nee o t! is supported on a frame 12 of any suit,- lllilu character and the carriage may he reciproeuted by a handle lever 13 'pivotod at it to the frame and iivotully connected by a link 15 to one end 0 the carriage (Fig. 1),

1 or the carriage may be reciproeatd by power ap lied in any'suitable manner according to the method and with tho-means heretot'oriconunonly cm loyed in the art. The rurriage in roviilrt wit-h a yarn cerrietrf 16 and a shifting guide 17. i e

The parts heretofore described are (201i.- iaon in knitting machines and I have not. i' iIlr.illt.'l\5Ll it necessary tocntcr into 'a more ilrln i Iod description thereof for that. reason and al'a' hccauae my invention is'notlimited in ii. application to a ma'eliine'in which those parts are of the particular construc- 100 iion ln-rcinchown. The foregeing-deseriplion is. deemed suiliciont for the par iose and will he readily understood by those 5 tilled in the art.

'lha machine which I have chosen for 106 ilhra rating the invention is adapted ancl'adjilzilttl to produce u strip foimakings. suscasory bandage pouch with a plain stitched the slack is exhausted the operator re eats the machine, and throng as may be desired, and I also provide means for automatically shifting the cams to opcrate the rear bani; carry out of operative position during each movement of the carriage that cent which would move the needles down to their lowered osition. i.

Re. erring to Fi 8 and 2, 83 is a stationurv cam and and 85 are adjustable cams for the front bank of needles and 36 is the stationary cam and 87 and B8 are the adjustable came for the rear bank of, needles. The stationary cams 33 and B6 are fastened rigidly on the underside of the carriage and the movable came 84, 35, 87 and 38 are provided with slots 39 to receive the eccentric pins on the adjusting screws 41. The screws for the cams 34 and 86 are provided with handles 42 and are adjusted manually, the pins 40 sliding in the slots 89 to move the came as desired. The acreivs for the (-Ulllf-l 37 and 3B are provided with rearwardly projecting levers 48, 48' which are arrange to engage adjustable stops 44, 44' mounted on the bed of the machine. These levers are connected at their rear ends by a link 45.which is provided at each end with a series of openings 46 to rec'eivo the pivot screw or bolt 47, whereby the levers may be ad usted relatively as desired.

As the carriage reci rocates the lever 43 will, engage the stop to lower the cam 37 and raise the cam 38 and the lever 43' will engage the stop 44' to lower the cam 38 and raise the cam 37. I provide this device for automatically adjusting the cams Blend 88 because it often happens that some of the needles move up more or less from their lowered position after the carringehaspa'sscd and the stitch is completed, owing generally to the fact that the urn is rather tight capei-mlly around the e astie cords. Hence it is desirable to avoid pulling these needles down pnrt'adjacent to each side edge of a central rib zig-za stitched part and having an elastic border at each side edge made with a rib zigzag stitch inclosmg six parallel elastic cords. These cords 18 travel to the machine from supply bobbins (not shown) over grooved rollers-19, suitablv supported above l tension devices 20 Huspcndod below said rollers. These tension devices comprise a plurality of transverse bars 21 spaced apart and between which the elastic cords are laced to provide the proper tension. In view of the illlliculty of feeding the elastic cords direct from the bobbins to the machine, owing to the tendency of the cords to stretch unevenly, l have found it desirable for the operator to pull a considerable slack from the bobbins and to hold this slack taut with weights 22, so that the cords feed from the taut slack be tween the bobbins and the rollers 19. When the operation and this prevents the castic cords from being woven in the fabric at unequal tension. The elastic corhds also pass under grooved rollers 23 and t ence at an angle of about more or less between guide fingers 24 to the throat. The rollers 23 are mounted on a. revoluble shaft 25 which is supported on anadjustable plate 2?. This plate is provided with rods 27' at it: ends which enter openings in cats 26 on the plates 10 mounted on the ont needlebed, and the late is held in its adjusted osition by thum screws 29 operatin in t e posts against said rods 27, (Fig. 4 The guide fingers 24 are carried by a bracket 30 which is secured in, place on the plate 26. The fingers are spaced apart and provided with :i transversexod 31 (Fig. 2) to prevent the cords from being-pushed up by the needles. I provide one set of these fingers beneath each .of the rollers 23 and the rollers may be adjusted on the shaft 25 and the bracket 30 may be adjusted on the late 26, longitudinally thereof, as requires; i

To f rm the plain stitched section etween the control ribbed section and the elastic mitt-r Motion of the fabric I provide a plnl rulity f knocking over bits 32 nltm'nntin with the needles in the rear bank. In the front bank the needles are omitted in front of the knocking over bits. Tliese knocking over bits are made in the form of rcarwni'dl y extending hooks which are fastened rigidly to the bed in the sition indicated in Fig. 5 and cooperate w th the needles in the rear bank to make the ordinary single stitch. customary th -manufa tur Of I ship f r The needles are operated by came of tho melting a snsponsory bandage-pouch, whic usual kind which are arranged in relation i tn is provided with one or more elastic to each other to form cam grooves to receive onrt s at each side edge and i; knitt d f fl e Imus of the needles, Means nro prw z-lilfl in side instead from end to end, to vidcd to adjust some of the came in the tlsmnl finish the raw edge left at the side of the way. for regulntm the movement of the strip by pickin up eiich stitch with a neoneedle to make a anger or shorter stitch dlethroadod with an elastic cord and drawthe return movement ofthe carriage which would unnecessarily stretch the yarn and have a tendency to break the yarn and tear the fabric. As the carriage reaches the llll'lli, of its movement in either direction the l operative position the cam 87 or 88 which would precede the elevating cam 88 on its next movement and those needles which have tinge are left. in that mition without unduly stretching or bros g the yarn.

As heretofore briefly described it has been of needles in order to to the limit of their downward movement on.

l nulomntic cam ehiftin device throws out of.

been moved up after the passage of the caris 2b theeord through all' the stitches of .the

raw edge." With my improvedmachine this Ahand-work is entirelyavoided for the strip I --':outyvardj-'therefrom throng brackets 50 on the ends "of-the carriage and'carry' cushion ,is knittedjrom end to ehd, instead of'from side to -side,'ind the elastic cord at each,

sitfie 'edfi'et'of the etri -is whollyinclosed .wi e knitted fa rie This is accommounting the needles-oi the front kih a racking plate 48 which can be adjusted longitudlnally'on 'th'erbed of the machine'- Fi s. 1, 8). Beds 49 'are'fastened tethe on s o the racking late and project steps 51. {Asthe car-rm e reciprocate the ubraekets eniga the cush on stopsand fshi'ft ront I; therackingn ate endwise. Thus the hankof, nee es is ehiiteda distance of one needle tothe 'position indicated in Fig. 1B whenfthe carriage reaches the limit of itsmovement 'tosthe-right and to the position indicated .in Fig. 14 when the carriage *1- reaches-the limit of its movemenh to the le and this shifting of the front bank of needlesil' rov'ides for makin .the stitch to in- 'close the elastic cords at t e outer hide edges of the fabric -strip as shown in Fi 15.-

' needles down by engaging the ggsners 55, 56 (Fig..-5

-. 'To hold the'needles of the front ml:

posite' the elastic cords down, so that he rackin' may take'pl'ace without-interfering 'w'itht e cords I provide ad'ustable cams on '---'theea'rri:i

, needles. n the drawn lu .ve.ehown one'form 0 these came which eo.th'at their heads may so from one to the other side of the elastic cords. The latch are mounted one ve the other.on t

. opener extending across the throat to opcrate the liatcheeotthe front bank'of neodles and the opener 56 being arranged to operate the latches of the rear'bank .of

A needles.

The strip for a susgensory'lmndage pouch ie preferahly provider with six. more or less, parallel elastic cords at each sidecdge thereof, a }plain single stitched section adjacent to eac elastic section, and of about thesame width, and a central section of a rib zig-zag stitch. The elastic "sectionsare made with the rib zig-zagz stitch like the central section', and this is found to be ver) satisfactory for euspensory bandage pouches, But it will be readily understood by those skilled in the art that the plain stitched section may be omitted, that. all the fabric between the tern Patent s: I

one thereof.

thread cflrrier 16, the.

elastic sections they be plain stitched, that elastic cords may be provided throughout the width of the fabric, ,anti that other stitches may be substituted for the ribnzigtag and the plain stitches. I preferablyjuse covered elastic cord but the'covering may be omitted ofs indicated in the drawihfie. As the fabric is made in a continuous ength,

finished at both-side edges, it can he cut as made into exact len thstor suspenso band- 'flge pouches motierarticles. The elastie cords me be located at any position tween the sh e edges of the fabric-instead. of,

adjacent to said edges and they. may "be spaced apart'atmny distance desired.

By knittin "the fabric lengthwise I hm enabled to finish both side edges in the machine and to incloso elastic cords at each edge, thus dispensing with the hand Work heretofore necessary to finish one side edge and to incloso the elastic co'rd therein. This not only rovides for the rapid manufacture of the fa, ric but: also ln'oduocs it in lini-shed condition ready to be,ma'de into .s'nspensory bandage pouches or other articles.

What I claim and desire to secure by Let 1. in rear banks of needles, a plate on the bed carrying the front hunk of needles, a carriago, means on the carriage for o wratxn n the needles, andincans on each cm of sun plate to be engaged and operated ,hy-tho can riugo'fo'r racking the front hunk of needles automatically at the end of travel of the carriage in each direction.

a lunttingunaohino, a bed, front and 2. In a knitting machine1 a laid, front and I rear banks of needles 0. 1: ate on the front of the ln-dcarrying'the front bank of noodles, a carriage, moans on tho carriugm for o crating the needles, moans for guiding e astic cords to the gnachine, and lllcnllS.Ull

eat'h end of said plate to he engaged and operated by the carriage for ranking the front bank of noodles nutonniticallyv at tho and of travel of tlnararriuge in each direction. a r i 3. ln a knitting muchintnn lied, front and rear hunks 'of nocdlos, a date on the front of the bed carrying the ront hunk of necdlcs, a carriage, mom; on the carriage for operating the needles, means for guiding e antic. cords to tho nnurh'ino, brackets on the ends of the carriage. rode on the ends of said plate projecting through said brackets,

and stops on said rods to he engaged by the brackets in automatically rat-k the front bank of noodles at the end of travel of,lho carriage in each direction.

4. in a knitting nmohinc, a bed, front and roarjianksr of noodles, :1 plate on the laal carrying the trout hunk of noodles, a car rinpu, numns on the un-riugro l'or operating the noodles. nn-oulor guiding elastic cords lo the lnuuhinu. r ds mirrit'd by said plate .thcrcof, through which-said rods project,

carriage in each direction.

6. In e knitting machine, a bed,.frontand rear banks of needles on the bed, a carriage,

means on. the cerria e for operating the needles means for gin ing elastic cords to the machine, means or racking the front bank of needles automatically at the end of travel of the carriage in each direction, and means for holding down the needles in the front bank adjacent to said elastic cords.

6. In a knitting machine, a bed, front and ;rear banks of needles on the bed, a carriage, means on the cam age for operating the needlesmeans for guiding elastic cords tothe mac ine, means for racking the front bank of needles automatically at the end of travel of the carriage. in each direction, and a cam plate on the carria e for engaging andholdmg down the nee es in the rent bank adjacent to said cords.

7. In a knitting machine, a bed, front and rear banks of needles on the bed, a carriage, means on the carria e for operating the needies, means for gui in machine to form an e astic section at each side of the the fabric bein produced, means for racking the front ban of needles automaticall at the end of travel of the carriage in each irection and cam plates on the carriage to engage t is needles on the front bank adjacent to the said elastic cords'to hold said .to the mac elastic mrds to the needles down away from the cords while the front bank of needles is being raciied.- 8. I i-n knitting machine, a bed, front and rear banks of necdles,a plate on the bed iront bank of needles, :1. car riagc, means on the carrie e for op' erat n the needles means for giii mg elastic cor hine, rods projecting outwerdlg from the ends of'eaid plate, stops on an]. rods, brackets on the carriage for eng%mg said stops to automa'ticall rack the ont bank of needles at the on oitra velofathe carriage in each direction, and'ineanscertied by thecarriage for holding the needles adjacent to said cords down away from and carrying the cords while the front bank of needles is ing racked.

9. In a knitting machine the combination of front and rear banks 0 needles, a plate carrying the iront bank of needles, means for operating' said needles, a carriage, means mounted on said carriage for actuat' said plate to rack the front bank of n es at the end of travel of the carriage in each ,direction, cam devices on the carriage tor ,operati he rear bank of needles, eccentrics for a justing said cam devices, actuatingk means connected to said eccentrics, end-suitable stops positioned in the path of iaid .mc-

t'uating means to cause the actuation thereof and shift the cam devices automaticallyas the carriage approaches the extremity of its movement in each direction.

HERBERT 0. sum. Witnesses WM. 0. Be'nr, M. A. Kmnni. 

